53261797 has 4 divisors (see below), whose sum is σ = 53364160. Its totient is φ = 53159436.

The previous prime is 53261743. The next prime is 53261809. The reversal of 53261797 is 79716235.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53261797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53261597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50397 + ... + 51442.

It is an arithmetic number, because the mean of its divisors is an integer number (13341040).

Almost surely, 2^53261797 is an apocalyptic number.

It is an amenable number.

53261797 is a deficient number, since it is larger than the sum of its proper divisors (102363).

53261797 is a wasteful number, since it uses less digits than its factorization.

53261797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102362.

The product of its digits is 79380, while the sum is 40.

The square root of 53261797 is about 7298.0680320205. The cubic root of 53261797 is about 376.2460405833.

The spelling of 53261797 in words is "fifty-three million, two hundred sixty-one thousand, seven hundred ninety-seven".